Serpintine Belt Chirp...

I was going to mention this in my previous question but I didn't want to horse up either question. I've noticed some intermittent chirping, I previously had a 97 chevy silverado and feeling little off center going from a 5.7 to a 4.3. Thanks again!

I was going to mention this in my previous question but I didn't want to horse up either question. I've noticed some intermittent chirping, I previously had a 97 chevy silverado and feeling little off center going from a 5.7 to a 4.3. Thanks again!

Click to expand...

The tensioners, especially, are wear items and have to be replaced often. Take the belt off and see if there is any side play in the tensioner at all. If there is, replace it. Also check the idlers while you're in there although that's a less frequent source of trouble.

Check for any oil or antifreeze leaks that may be contaminating the belt.

If that's all OK try another belt. That will probably clear it up at first. Sometimes the belts fail without any visible damage. If the new belt starts chirping then check for damaged or misaligned pulleys. I worked on one car that ate belts and it turned out the previous owner had J-B welded the power steering pump bracket and the pump wasn't mounted square anymore so all the tension was on one side of the belt.

So took the truck to the dealer said no problems, bring it back it starts chirping. Brought it back to them of course the chirping went away, told them its on a cold start. They csll me bsck say we located problem it's the alternator $500. I said I'll be by to pick up my truck, mind u I have had it a shade over a week. Pick it up drive it home snd I got 12.4 amps in the battery, 13.9 when starting snd 15 when sccerlating with lights and radio on. It still chirps upon cold start? What y'all think?

- - - Updated - - -

I had an increase instead of a decrease, it only does it on cold start up, so weird